Yes Charlie I understand your bouncing process. It is a very creative use of BiaB and it is different than my 16 track suggestion.

I have a different workflow. When I want more tracks from BiaB I will transfer the tracks into Sonar, go back to BiaB then transfer this into Sonar. In Sonar I cut, paste, blend, control volume, pan, etc.

Your workflow is perfect for someone who knows exactly what they want and they can stay in BiaB. Being the scatter brain that I am most of the time I have a general idea of what I want but I will not get to my goal until I use the trail and error method.

Whenever I get something stuck in the back of my throat, I dislodge it by drinking a beer.
It's called the Heineken Maneuver.

64 bit Win 10 Pro, the latest BiaB/RB, Roland Octa-Capture audio interface, a ton of software/hardware